CPAN RT

LWP::Debug is used to provide tracing facilities,
but these are not used by LWP any more.
The code in this module is kept around (undocumented) so that 3rd party code that happens to use the old interfaces continue to run.

One useful feature that LWP::Debug provided (in an imprecise and troublesome way) was network traffic monitoring.
The following section provides some hints about recommended replacements.